Home / 143,630,092.80-215,445,139.20-99,792,115.20

Finding the Fourth Proportional to 143,630,092.80, 215,445,139.20 and 99,792,115.20

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Solution

The fourth proportional to 143,630,092.80, 215,445,139.20 and 99,792,115.20 is: 149,688,172.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,630,092.80 : 215,445,139.20 = 99,792,115.20 : x
  2. Step 2: Convert to fraction form
    143,630,092.80/215,445,139.20 = 99,792,115.20/x
  3. Step 3: Cross multiply
    143,630,092.80x = 215,445,139.20 × 99,792,115.20
  4. Step 4: Simplify right side
    143,630,092.80x = 21,499,726,150,326,436
  5. Step 5: Solve for x
    x = 21,499,726,150,326,436/143,630,092.80
  6. Step 6: Final answer
    x = 149,688,172.80

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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.