Home / 125,017.47-172,508.94-99,588.60

Finding the Fourth Proportional to 125,017.47, 172,508.94 and 99,588.60

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Solution

The fourth proportional to 125,017.47, 172,508.94 and 99,588.60 is: 137,420.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,017.47 : 172,508.94 = 99,588.60 : x
  2. Step 2: Convert to fraction form
    125,017.47/172,508.94 = 99,588.60/x
  3. Step 3: Cross multiply
    125,017.47x = 172,508.94 × 99,588.60
  4. Step 4: Simplify right side
    125,017.47x = 17,179,923,822.08
  5. Step 5: Solve for x
    x = 17,179,923,822.08/125,017.47
  6. Step 6: Final answer
    x = 137,420.18

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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.