Home / 258,545.16-387,587.43-100,737.72

Finding the Fourth Proportional to 258,545.16, 387,587.43 and 100,737.72

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Solution

The fourth proportional to 258,545.16, 387,587.43 and 100,737.72 is: 151,016.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,545.16 : 387,587.43 = 100,737.72 : x
  2. Step 2: Convert to fraction form
    258,545.16/387,587.43 = 100,737.72/x
  3. Step 3: Cross multiply
    258,545.16x = 387,587.43 × 100,737.72
  4. Step 4: Simplify right side
    258,545.16x = 39,044,673,998.86
  5. Step 5: Solve for x
    x = 39,044,673,998.86/258,545.16
  6. Step 6: Final answer
    x = 151,016.84

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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.