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Finding the Fourth Proportional to 145,759.60, 218,545.80 and 61,496.72

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Solution

The fourth proportional to 145,759.60, 218,545.80 and 61,496.72 is: 92,205.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,759.60 : 218,545.80 = 61,496.72 : x
  2. Step 2: Convert to fraction form
    145,759.60/218,545.80 = 61,496.72/x
  3. Step 3: Cross multiply
    145,759.60x = 218,545.80 × 61,496.72
  4. Step 4: Simplify right side
    145,759.60x = 13,439,849,365.98
  5. Step 5: Solve for x
    x = 13,439,849,365.98/145,759.60
  6. Step 6: Final answer
    x = 92,205.59

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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.