Home / 99,220.41-136,925.71-53,899.29

Finding the Fourth Proportional to 99,220.41, 136,925.71 and 53,899.29

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Solution

The fourth proportional to 99,220.41, 136,925.71 and 53,899.29 is: 74,381.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,220.41 : 136,925.71 = 53,899.29 : x
  2. Step 2: Convert to fraction form
    99,220.41/136,925.71 = 53,899.29/x
  3. Step 3: Cross multiply
    99,220.41x = 136,925.71 × 53,899.29
  4. Step 4: Simplify right side
    99,220.41x = 7,380,198,417.00
  5. Step 5: Solve for x
    x = 7,380,198,417.00/99,220.41
  6. Step 6: Final answer
    x = 74,381.86

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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.