Home / 157,099.10-235,389.45-78,043.10

Finding the Fourth Proportional to 157,099.10, 235,389.45 and 78,043.10

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Solution

The fourth proportional to 157,099.10, 235,389.45 and 78,043.10 is: 116,935.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,099.10 : 235,389.45 = 78,043.10 : x
  2. Step 2: Convert to fraction form
    157,099.10/235,389.45 = 78,043.10/x
  3. Step 3: Cross multiply
    157,099.10x = 235,389.45 × 78,043.10
  4. Step 4: Simplify right side
    157,099.10x = 18,370,522,385.30
  5. Step 5: Solve for x
    x = 18,370,522,385.30/157,099.10
  6. Step 6: Final answer
    x = 116,935.89

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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.