Home / 112,678.04-155,601.07-72,461.62

Finding the Fourth Proportional to 112,678.04, 155,601.07 and 72,461.62

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Solution

The fourth proportional to 112,678.04, 155,601.07 and 72,461.62 is: 100,064.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,678.04 : 155,601.07 = 72,461.62 : x
  2. Step 2: Convert to fraction form
    112,678.04/155,601.07 = 72,461.62/x
  3. Step 3: Cross multiply
    112,678.04x = 155,601.07 × 72,461.62
  4. Step 4: Simplify right side
    112,678.04x = 11,275,105,619.28
  5. Step 5: Solve for x
    x = 11,275,105,619.28/112,678.04
  6. Step 6: Final answer
    x = 100,064.80

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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.