Home / 156,742.90-235,130.79-51,570.10

Finding the Fourth Proportional to 156,742.90, 235,130.79 and 51,570.10

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Solution

The fourth proportional to 156,742.90, 235,130.79 and 51,570.10 is: 77,360.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,742.90 : 235,130.79 = 51,570.10 : x
  2. Step 2: Convert to fraction form
    156,742.90/235,130.79 = 51,570.10/x
  3. Step 3: Cross multiply
    156,742.90x = 235,130.79 × 51,570.10
  4. Step 4: Simplify right side
    156,742.90x = 12,125,718,353.38
  5. Step 5: Solve for x
    x = 12,125,718,353.38/156,742.90
  6. Step 6: Final answer
    x = 77,360.56

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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.