Home / 112,679.04-155,602.45-72,462.62

Finding the Fourth Proportional to 112,679.04, 155,602.45 and 72,462.62

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Solution

The fourth proportional to 112,679.04, 155,602.45 and 72,462.62 is: 100,066.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,679.04 : 155,602.45 = 72,462.62 : x
  2. Step 2: Convert to fraction form
    112,679.04/155,602.45 = 72,462.62/x
  3. Step 3: Cross multiply
    112,679.04x = 155,602.45 × 72,462.62
  4. Step 4: Simplify right side
    112,679.04x = 11,275,361,205.42
  5. Step 5: Solve for x
    x = 11,275,361,205.42/112,679.04
  6. Step 6: Final answer
    x = 100,066.18

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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.