Home / 141,325.16-195,031.80-77,664.02

Finding the Fourth Proportional to 141,325.16, 195,031.80 and 77,664.02

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Solution

The fourth proportional to 141,325.16, 195,031.80 and 77,664.02 is: 107,178.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,325.16 : 195,031.80 = 77,664.02 : x
  2. Step 2: Convert to fraction form
    141,325.16/195,031.80 = 77,664.02/x
  3. Step 3: Cross multiply
    141,325.16x = 195,031.80 × 77,664.02
  4. Step 4: Simplify right side
    141,325.16x = 15,146,952,640.68
  5. Step 5: Solve for x
    x = 15,146,952,640.68/141,325.16
  6. Step 6: Final answer
    x = 107,178.04

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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.