Home / 145,393.30-218,000.65-56,543.29

Finding the Fourth Proportional to 145,393.30, 218,000.65 and 56,543.29

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Solution

The fourth proportional to 145,393.30, 218,000.65 and 56,543.29 is: 84,780.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,393.30 : 218,000.65 = 56,543.29 : x
  2. Step 2: Convert to fraction form
    145,393.30/218,000.65 = 56,543.29/x
  3. Step 3: Cross multiply
    145,393.30x = 218,000.65 × 56,543.29
  4. Step 4: Simplify right side
    145,393.30x = 12,326,473,973.14
  5. Step 5: Solve for x
    x = 12,326,473,973.14/145,393.30
  6. Step 6: Final answer
    x = 84,780.21

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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.