Home / 112,362.90-155,082.60-72,127.56

Finding the Fourth Proportional to 112,362.90, 155,082.60 and 72,127.56

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Solution

The fourth proportional to 112,362.90, 155,082.60 and 72,127.56 is: 99,550.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,362.90 : 155,082.60 = 72,127.56 : x
  2. Step 2: Convert to fraction form
    112,362.90/155,082.60 = 72,127.56/x
  3. Step 3: Cross multiply
    112,362.90x = 155,082.60 × 72,127.56
  4. Step 4: Simplify right side
    112,362.90x = 11,185,730,118.02
  5. Step 5: Solve for x
    x = 11,185,730,118.02/112,362.90
  6. Step 6: Final answer
    x = 99,550.03

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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.