Home / 112,730.13-155,492.67-72,494.76

Finding the Fourth Proportional to 112,730.13, 155,492.67 and 72,494.76

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Solution

The fourth proportional to 112,730.13, 155,492.67 and 72,494.76 is: 99,994.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,730.13 : 155,492.67 = 72,494.76 : x
  2. Step 2: Convert to fraction form
    112,730.13/155,492.67 = 72,494.76/x
  3. Step 3: Cross multiply
    112,730.13x = 155,492.67 × 72,494.76
  4. Step 4: Simplify right side
    112,730.13x = 11,272,403,793.41
  5. Step 5: Solve for x
    x = 11,272,403,793.41/112,730.13
  6. Step 6: Final answer
    x = 99,994.60

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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.