Home / 113,962.11-157,266.85-62,978.28

Finding the Fourth Proportional to 113,962.11, 157,266.85 and 62,978.28

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Solution

The fourth proportional to 113,962.11, 157,266.85 and 62,978.28 is: 86,909.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,962.11 : 157,266.85 = 62,978.28 : x
  2. Step 2: Convert to fraction form
    113,962.11/157,266.85 = 62,978.28/x
  3. Step 3: Cross multiply
    113,962.11x = 157,266.85 × 62,978.28
  4. Step 4: Simplify right side
    113,962.11x = 9,904,395,714.02
  5. Step 5: Solve for x
    x = 9,904,395,714.02/113,962.11
  6. Step 6: Final answer
    x = 86,909.55

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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.