Home / 133,035.16-199,545.45-80,430.52

Finding the Fourth Proportional to 133,035.16, 199,545.45 and 80,430.52

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Solution

The fourth proportional to 133,035.16, 199,545.45 and 80,430.52 is: 120,641.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,035.16 : 199,545.45 = 80,430.52 : x
  2. Step 2: Convert to fraction form
    133,035.16/199,545.45 = 80,430.52/x
  3. Step 3: Cross multiply
    133,035.16x = 199,545.45 × 80,430.52
  4. Step 4: Simplify right side
    133,035.16x = 16,049,544,307.13
  5. Step 5: Solve for x
    x = 16,049,544,307.13/133,035.16
  6. Step 6: Final answer
    x = 120,641.37

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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.