Home / 131,348.61-181,265.52-77,679.63

Finding the Fourth Proportional to 131,348.61, 181,265.52 and 77,679.63

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Solution

The fourth proportional to 131,348.61, 181,265.52 and 77,679.63 is: 107,200.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,348.61 : 181,265.52 = 77,679.63 : x
  2. Step 2: Convert to fraction form
    131,348.61/181,265.52 = 77,679.63/x
  3. Step 3: Cross multiply
    131,348.61x = 181,265.52 × 77,679.63
  4. Step 4: Simplify right side
    131,348.61x = 14,080,638,816.66
  5. Step 5: Solve for x
    x = 14,080,638,816.66/131,348.61
  6. Step 6: Final answer
    x = 107,200.52

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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.