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Finding the Fourth Proportional to 112,000.60, 168,000.90 and 97,420.60

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Solution

The fourth proportional to 112,000.60, 168,000.90 and 97,420.60 is: 146,130.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,000.60 : 168,000.90 = 97,420.60 : x
  2. Step 2: Convert to fraction form
    112,000.60/168,000.90 = 97,420.60/x
  3. Step 3: Cross multiply
    112,000.60x = 168,000.90 × 97,420.60
  4. Step 4: Simplify right side
    112,000.60x = 16,366,748,478.54
  5. Step 5: Solve for x
    x = 16,366,748,478.54/112,000.60
  6. Step 6: Final answer
    x = 146,130.90

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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.