Home / 112,482.48-155,186.52-72,193.20

Finding the Fourth Proportional to 112,482.48, 155,186.52 and 72,193.20

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Solution

The fourth proportional to 112,482.48, 155,186.52 and 72,193.20 is: 99,601.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,482.48 : 155,186.52 = 72,193.20 : x
  2. Step 2: Convert to fraction form
    112,482.48/155,186.52 = 72,193.20/x
  3. Step 3: Cross multiply
    112,482.48x = 155,186.52 × 72,193.20
  4. Step 4: Simplify right side
    112,482.48x = 11,203,411,475.66
  5. Step 5: Solve for x
    x = 11,203,411,475.66/112,482.48
  6. Step 6: Final answer
    x = 99,601.39

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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.