Home / 115,345.28-159,077.04-75,044.32

Finding the Fourth Proportional to 115,345.28, 159,077.04 and 75,044.32

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Solution

The fourth proportional to 115,345.28, 159,077.04 and 75,044.32 is: 103,496.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,345.28 : 159,077.04 = 75,044.32 : x
  2. Step 2: Convert to fraction form
    115,345.28/159,077.04 = 75,044.32/x
  3. Step 3: Cross multiply
    115,345.28x = 159,077.04 × 75,044.32
  4. Step 4: Simplify right side
    115,345.28x = 11,937,828,294.41
  5. Step 5: Solve for x
    x = 11,937,828,294.41/115,345.28
  6. Step 6: Final answer
    x = 103,496.46

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1.5x scale

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.