Home / 156,931.49-235,264.59-68,118.23

Finding the Fourth Proportional to 156,931.49, 235,264.59 and 68,118.23

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Solution

The fourth proportional to 156,931.49, 235,264.59 and 68,118.23 is: 102,119.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,931.49 : 235,264.59 = 68,118.23 : x
  2. Step 2: Convert to fraction form
    156,931.49/235,264.59 = 68,118.23/x
  3. Step 3: Cross multiply
    156,931.49x = 235,264.59 × 68,118.23
  4. Step 4: Simplify right side
    156,931.49x = 16,025,807,452.48
  5. Step 5: Solve for x
    x = 16,025,807,452.48/156,931.49
  6. Step 6: Final answer
    x = 102,119.77

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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.