Home / 156,861.36-235,099.28-72,507.40

Finding the Fourth Proportional to 156,861.36, 235,099.28 and 72,507.40

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Solution

The fourth proportional to 156,861.36, 235,099.28 and 72,507.40 is: 108,672.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,861.36 : 235,099.28 = 72,507.40 : x
  2. Step 2: Convert to fraction form
    156,861.36/235,099.28 = 72,507.40/x
  3. Step 3: Cross multiply
    156,861.36x = 235,099.28 × 72,507.40
  4. Step 4: Simplify right side
    156,861.36x = 17,046,437,128.19
  5. Step 5: Solve for x
    x = 17,046,437,128.19/156,861.36
  6. Step 6: Final answer
    x = 108,672.00

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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.