Home / 105,165,903.12-145,129,007.76-58,756,156.92

Finding the Fourth Proportional to 105,165,903.12, 145,129,007.76 and 58,756,156.92

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Solution

The fourth proportional to 105,165,903.12, 145,129,007.76 and 58,756,156.92 is: 81,083,530.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,165,903.12 : 145,129,007.76 = 58,756,156.92 : x
  2. Step 2: Convert to fraction form
    105,165,903.12/145,129,007.76 = 58,756,156.92/x
  3. Step 3: Cross multiply
    105,165,903.12x = 145,129,007.76 × 58,756,156.92
  4. Step 4: Simplify right side
    105,165,903.12x = 8,527,222,753,590,457
  5. Step 5: Solve for x
    x = 8,527,222,753,590,457/105,165,903.12
  6. Step 6: Final answer
    x = 81,083,530.88

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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.