Home / 112,543.32-155,308.02-61,554.90

Finding the Fourth Proportional to 112,543.32, 155,308.02 and 61,554.90

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Solution

The fourth proportional to 112,543.32, 155,308.02 and 61,554.90 is: 84,944.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,543.32 : 155,308.02 = 61,554.90 : x
  2. Step 2: Convert to fraction form
    112,543.32/155,308.02 = 61,554.90/x
  3. Step 3: Cross multiply
    112,543.32x = 155,308.02 × 61,554.90
  4. Step 4: Simplify right side
    112,543.32x = 9,559,969,640.30
  5. Step 5: Solve for x
    x = 9,559,969,640.30/112,543.32
  6. Step 6: Final answer
    x = 84,944.80

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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.