Home / 122,006.80-183,010.20-86,577.40

Finding the Fourth Proportional to 122,006.80, 183,010.20 and 86,577.40

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Solution

The fourth proportional to 122,006.80, 183,010.20 and 86,577.40 is: 129,866.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,006.80 : 183,010.20 = 86,577.40 : x
  2. Step 2: Convert to fraction form
    122,006.80/183,010.20 = 86,577.40/x
  3. Step 3: Cross multiply
    122,006.80x = 183,010.20 × 86,577.40
  4. Step 4: Simplify right side
    122,006.80x = 15,844,547,289.48
  5. Step 5: Solve for x
    x = 15,844,547,289.48/122,006.80
  6. Step 6: Final answer
    x = 129,866.10

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1.5x scale

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.