Home / 145,355.18-217,990.65-56,588.90

Finding the Fourth Proportional to 145,355.18, 217,990.65 and 56,588.90

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Solution

The fourth proportional to 145,355.18, 217,990.65 and 56,588.90 is: 84,866.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,355.18 : 217,990.65 = 56,588.90 : x
  2. Step 2: Convert to fraction form
    145,355.18/217,990.65 = 56,588.90/x
  3. Step 3: Cross multiply
    145,355.18x = 217,990.65 × 56,588.90
  4. Step 4: Simplify right side
    145,355.18x = 12,335,851,093.79
  5. Step 5: Solve for x
    x = 12,335,851,093.79/145,355.18
  6. Step 6: Final answer
    x = 84,866.95

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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.