Home / 105,571,885.04-145,637,429.92-91,613,649.16

Finding the Fourth Proportional to 105,571,885.04, 145,637,429.92 and 91,613,649.16

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Solution

The fourth proportional to 105,571,885.04, 145,637,429.92 and 91,613,649.16 is: 126,381,909.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,571,885.04 : 145,637,429.92 = 91,613,649.16 : x
  2. Step 2: Convert to fraction form
    105,571,885.04/145,637,429.92 = 91,613,649.16/x
  3. Step 3: Cross multiply
    105,571,885.04x = 145,637,429.92 × 91,613,649.16
  4. Step 4: Simplify right side
    105,571,885.04x = 13,342,376,409,254,966
  5. Step 5: Solve for x
    x = 13,342,376,409,254,966/105,571,885.04
  6. Step 6: Final answer
    x = 126,381,909.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.