Home / 131,762.07-181,830.36-71,331.12

Finding the Fourth Proportional to 131,762.07, 181,830.36 and 71,331.12

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Solution

The fourth proportional to 131,762.07, 181,830.36 and 71,331.12 is: 98,436.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,762.07 : 181,830.36 = 71,331.12 : x
  2. Step 2: Convert to fraction form
    131,762.07/181,830.36 = 71,331.12/x
  3. Step 3: Cross multiply
    131,762.07x = 181,830.36 × 71,331.12
  4. Step 4: Simplify right side
    131,762.07x = 12,970,163,228.80
  5. Step 5: Solve for x
    x = 12,970,163,228.80/131,762.07
  6. Step 6: Final answer
    x = 98,436.24

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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.