Home / 155,420.10-233,130.15-56,911.30

Finding the Fourth Proportional to 155,420.10, 233,130.15 and 56,911.30

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Solution

The fourth proportional to 155,420.10, 233,130.15 and 56,911.30 is: 85,366.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,420.10 : 233,130.15 = 56,911.30 : x
  2. Step 2: Convert to fraction form
    155,420.10/233,130.15 = 56,911.30/x
  3. Step 3: Cross multiply
    155,420.10x = 233,130.15 × 56,911.30
  4. Step 4: Simplify right side
    155,420.10x = 13,267,739,905.70
  5. Step 5: Solve for x
    x = 13,267,739,905.70/155,420.10
  6. Step 6: Final answer
    x = 85,366.95

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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.