Home / 287,132.14-430,762.46-87,468.15

Finding the Fourth Proportional to 287,132.14, 430,762.46 and 87,468.15

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Solution

The fourth proportional to 287,132.14, 430,762.46 and 87,468.15 is: 131,221.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,132.14 : 430,762.46 = 87,468.15 : x
  2. Step 2: Convert to fraction form
    287,132.14/430,762.46 = 87,468.15/x
  3. Step 3: Cross multiply
    287,132.14x = 430,762.46 × 87,468.15
  4. Step 4: Simplify right side
    287,132.14x = 37,677,996,643.67
  5. Step 5: Solve for x
    x = 37,677,996,643.67/287,132.14
  6. Step 6: Final answer
    x = 131,221.80

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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.