Home / 155,813.22-215,045.28-115,470.36

Finding the Fourth Proportional to 155,813.22, 215,045.28 and 115,470.36

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Solution

The fourth proportional to 155,813.22, 215,045.28 and 115,470.36 is: 159,366.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,813.22 : 215,045.28 = 115,470.36 : x
  2. Step 2: Convert to fraction form
    155,813.22/215,045.28 = 115,470.36/x
  3. Step 3: Cross multiply
    155,813.22x = 215,045.28 × 115,470.36
  4. Step 4: Simplify right side
    155,813.22x = 24,831,355,897.90
  5. Step 5: Solve for x
    x = 24,831,355,897.90/155,813.22
  6. Step 6: Final answer
    x = 159,366.17

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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.