Home / 127,642.03-176,144.54-70,280.15

Finding the Fourth Proportional to 127,642.03, 176,144.54 and 70,280.15

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Solution

The fourth proportional to 127,642.03, 176,144.54 and 70,280.15 is: 96,985.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,642.03 : 176,144.54 = 70,280.15 : x
  2. Step 2: Convert to fraction form
    127,642.03/176,144.54 = 70,280.15/x
  3. Step 3: Cross multiply
    127,642.03x = 176,144.54 × 70,280.15
  4. Step 4: Simplify right side
    127,642.03x = 12,379,463,856.08
  5. Step 5: Solve for x
    x = 12,379,463,856.08/127,642.03
  6. Step 6: Final answer
    x = 96,985.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.