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Finding the Fourth Proportional to 112,532.60, 168,798.90 and 103,347.20

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Solution

The fourth proportional to 112,532.60, 168,798.90 and 103,347.20 is: 155,020.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,532.60 : 168,798.90 = 103,347.20 : x
  2. Step 2: Convert to fraction form
    112,532.60/168,798.90 = 103,347.20/x
  3. Step 3: Cross multiply
    112,532.60x = 168,798.90 × 103,347.20
  4. Step 4: Simplify right side
    112,532.60x = 17,444,893,678.08
  5. Step 5: Solve for x
    x = 17,444,893,678.08/112,532.60
  6. Step 6: Final answer
    x = 155,020.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.