Home / 145,440.90-218,118.15-56,643.30

Finding the Fourth Proportional to 145,440.90, 218,118.15 and 56,643.30

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Solution

The fourth proportional to 145,440.90, 218,118.15 and 56,643.30 is: 84,948.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,440.90 : 218,118.15 = 56,643.30 : x
  2. Step 2: Convert to fraction form
    145,440.90/218,118.15 = 56,643.30/x
  3. Step 3: Cross multiply
    145,440.90x = 218,118.15 × 56,643.30
  4. Step 4: Simplify right side
    145,440.90x = 12,354,931,805.90
  5. Step 5: Solve for x
    x = 12,354,931,805.90/145,440.90
  6. Step 6: Final answer
    x = 84,948.13

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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.