Home / 126,627.40-189,941.10-97,102.90

Finding the Fourth Proportional to 126,627.40, 189,941.10 and 97,102.90

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Solution

The fourth proportional to 126,627.40, 189,941.10 and 97,102.90 is: 145,654.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,627.40 : 189,941.10 = 97,102.90 : x
  2. Step 2: Convert to fraction form
    126,627.40/189,941.10 = 97,102.90/x
  3. Step 3: Cross multiply
    126,627.40x = 189,941.10 × 97,102.90
  4. Step 4: Simplify right side
    126,627.40x = 18,443,831,639.19
  5. Step 5: Solve for x
    x = 18,443,831,639.19/126,627.40
  6. Step 6: Final answer
    x = 145,654.35

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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.