Home / 99,688.95-149,473.19-39,726.65

Finding the Fourth Proportional to 99,688.95, 149,473.19 and 39,726.65

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Solution

The fourth proportional to 99,688.95, 149,473.19 and 39,726.65 is: 59,565.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,688.95 : 149,473.19 = 39,726.65 : x
  2. Step 2: Convert to fraction form
    99,688.95/149,473.19 = 39,726.65/x
  3. Step 3: Cross multiply
    99,688.95x = 149,473.19 × 39,726.65
  4. Step 4: Simplify right side
    99,688.95x = 5,938,069,297.19
  5. Step 5: Solve for x
    x = 5,938,069,297.19/99,688.95
  6. Step 6: Final answer
    x = 59,565.97

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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.