Home / 156,688.40-235,070.40-51,501.80

Finding the Fourth Proportional to 156,688.40, 235,070.40 and 51,501.80

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Solution

The fourth proportional to 156,688.40, 235,070.40 and 51,501.80 is: 77,265.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,688.40 : 235,070.40 = 51,501.80 : x
  2. Step 2: Convert to fraction form
    156,688.40/235,070.40 = 51,501.80/x
  3. Step 3: Cross multiply
    156,688.40x = 235,070.40 × 51,501.80
  4. Step 4: Simplify right side
    156,688.40x = 12,106,548,726.72
  5. Step 5: Solve for x
    x = 12,106,548,726.72/156,688.40
  6. Step 6: Final answer
    x = 77,265.12

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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.