Home / 99,045.60-148,366.80-61,490.40

Finding the Fourth Proportional to 99,045.60, 148,366.80 and 61,490.40

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Solution

The fourth proportional to 99,045.60, 148,366.80 and 61,490.40 is: 92,110.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,045.60 : 148,366.80 = 61,490.40 : x
  2. Step 2: Convert to fraction form
    99,045.60/148,366.80 = 61,490.40/x
  3. Step 3: Cross multiply
    99,045.60x = 148,366.80 × 61,490.40
  4. Step 4: Simplify right side
    99,045.60x = 9,123,133,878.72
  5. Step 5: Solve for x
    x = 9,123,133,878.72/99,045.60
  6. Step 6: Final answer
    x = 92,110.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.