Home / 155,924.95-215,200.65-102,365.32

Finding the Fourth Proportional to 155,924.95, 215,200.65 and 102,365.32

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Solution

The fourth proportional to 155,924.95, 215,200.65 and 102,365.32 is: 141,280.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,924.95 : 215,200.65 = 102,365.32 : x
  2. Step 2: Convert to fraction form
    155,924.95/215,200.65 = 102,365.32/x
  3. Step 3: Cross multiply
    155,924.95x = 215,200.65 × 102,365.32
  4. Step 4: Simplify right side
    155,924.95x = 22,029,083,401.46
  5. Step 5: Solve for x
    x = 22,029,083,401.46/155,924.95
  6. Step 6: Final answer
    x = 141,280.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.