Home / 112,078.60-168,117.90-64,839.40

Finding the Fourth Proportional to 112,078.60, 168,117.90 and 64,839.40

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Solution

The fourth proportional to 112,078.60, 168,117.90 and 64,839.40 is: 97,259.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,078.60 : 168,117.90 = 64,839.40 : x
  2. Step 2: Convert to fraction form
    112,078.60/168,117.90 = 64,839.40/x
  3. Step 3: Cross multiply
    112,078.60x = 168,117.90 × 64,839.40
  4. Step 4: Simplify right side
    112,078.60x = 10,900,663,765.26
  5. Step 5: Solve for x
    x = 10,900,663,765.26/112,078.60
  6. Step 6: Final answer
    x = 97,259.10

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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.