Home / 148,837.50-205,398.18-85,210.38

Finding the Fourth Proportional to 148,837.50, 205,398.18 and 85,210.38

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Solution

The fourth proportional to 148,837.50, 205,398.18 and 85,210.38 is: 117,591.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,837.50 : 205,398.18 = 85,210.38 : x
  2. Step 2: Convert to fraction form
    148,837.50/205,398.18 = 85,210.38/x
  3. Step 3: Cross multiply
    148,837.50x = 205,398.18 × 85,210.38
  4. Step 4: Simplify right side
    148,837.50x = 17,502,056,969.11
  5. Step 5: Solve for x
    x = 17,502,056,969.11/148,837.50
  6. Step 6: Final answer
    x = 117,591.72

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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.