Home / 134,545.76-185,673.20-77,989.92

Finding the Fourth Proportional to 134,545.76, 185,673.20 and 77,989.92

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Solution

The fourth proportional to 134,545.76, 185,673.20 and 77,989.92 is: 107,626.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,545.76 : 185,673.20 = 77,989.92 : x
  2. Step 2: Convert to fraction form
    134,545.76/185,673.20 = 77,989.92/x
  3. Step 3: Cross multiply
    134,545.76x = 185,673.20 × 77,989.92
  4. Step 4: Simplify right side
    134,545.76x = 14,480,638,014.14
  5. Step 5: Solve for x
    x = 14,480,638,014.14/134,545.76
  6. Step 6: Final answer
    x = 107,626.12

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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.