Home / 136,917.60-205,030.80-101,666.40

Finding the Fourth Proportional to 136,917.60, 205,030.80 and 101,666.40

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Solution

The fourth proportional to 136,917.60, 205,030.80 and 101,666.40 is: 152,242.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,917.60 : 205,030.80 = 101,666.40 : x
  2. Step 2: Convert to fraction form
    136,917.60/205,030.80 = 101,666.40/x
  3. Step 3: Cross multiply
    136,917.60x = 205,030.80 × 101,666.40
  4. Step 4: Simplify right side
    136,917.60x = 20,844,743,325.12
  5. Step 5: Solve for x
    x = 20,844,743,325.12/136,917.60
  6. Step 6: Final answer
    x = 152,242.98

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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.