Home / 130,825.84-180,514.98-77,127.70

Finding the Fourth Proportional to 130,825.84, 180,514.98 and 77,127.70

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Solution

The fourth proportional to 130,825.84, 180,514.98 and 77,127.70 is: 106,421.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,825.84 : 180,514.98 = 77,127.70 : x
  2. Step 2: Convert to fraction form
    130,825.84/180,514.98 = 77,127.70/x
  3. Step 3: Cross multiply
    130,825.84x = 180,514.98 × 77,127.70
  4. Step 4: Simplify right side
    130,825.84x = 13,922,705,222.95
  5. Step 5: Solve for x
    x = 13,922,705,222.95/130,825.84
  6. Step 6: Final answer
    x = 106,421.68

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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.