Home / 156,750.72-235,155.36-51,643.68

Finding the Fourth Proportional to 156,750.72, 235,155.36 and 51,643.68

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Solution

The fourth proportional to 156,750.72, 235,155.36 and 51,643.68 is: 77,475.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,750.72 : 235,155.36 = 51,643.68 : x
  2. Step 2: Convert to fraction form
    156,750.72/235,155.36 = 51,643.68/x
  3. Step 3: Cross multiply
    156,750.72x = 235,155.36 × 51,643.68
  4. Step 4: Simplify right side
    156,750.72x = 12,144,288,162.12
  5. Step 5: Solve for x
    x = 12,144,288,162.12/156,750.72
  6. Step 6: Final answer
    x = 77,475.17

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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.