Home / 254,637.02-381,581.67-128,103.35

Finding the Fourth Proportional to 254,637.02, 381,581.67 and 128,103.35

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Solution

The fourth proportional to 254,637.02, 381,581.67 and 128,103.35 is: 191,966.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,637.02 : 381,581.67 = 128,103.35 : x
  2. Step 2: Convert to fraction form
    254,637.02/381,581.67 = 128,103.35/x
  3. Step 3: Cross multiply
    254,637.02x = 381,581.67 × 128,103.35
  4. Step 4: Simplify right side
    254,637.02x = 48,881,888,798.07
  5. Step 5: Solve for x
    x = 48,881,888,798.07/254,637.02
  6. Step 6: Final answer
    x = 191,966.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.