Home / 108,459.32-162,938.74-76,947.62

Finding the Fourth Proportional to 108,459.32, 162,938.74 and 76,947.62

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Solution

The fourth proportional to 108,459.32, 162,938.74 and 76,947.62 is: 115,598.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,459.32 : 162,938.74 = 76,947.62 : x
  2. Step 2: Convert to fraction form
    108,459.32/162,938.74 = 76,947.62/x
  3. Step 3: Cross multiply
    108,459.32x = 162,938.74 × 76,947.62
  4. Step 4: Simplify right side
    108,459.32x = 12,537,748,248.80
  5. Step 5: Solve for x
    x = 12,537,748,248.80/108,459.32
  6. Step 6: Final answer
    x = 115,598.62

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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.