Home / 112,746.27-155,514.93-72,510.93

Finding the Fourth Proportional to 112,746.27, 155,514.93 and 72,510.93

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Solution

The fourth proportional to 112,746.27, 155,514.93 and 72,510.93 is: 100,016.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,746.27 : 155,514.93 = 72,510.93 : x
  2. Step 2: Convert to fraction form
    112,746.27/155,514.93 = 72,510.93/x
  3. Step 3: Cross multiply
    112,746.27x = 155,514.93 × 72,510.93
  4. Step 4: Simplify right side
    112,746.27x = 11,276,532,203.18
  5. Step 5: Solve for x
    x = 11,276,532,203.18/112,746.27
  6. Step 6: Final answer
    x = 100,016.90

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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.