Home / 136,000.60-187,678.34-75,570.14

Finding the Fourth Proportional to 136,000.60, 187,678.34 and 75,570.14

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Solution

The fourth proportional to 136,000.60, 187,678.34 and 75,570.14 is: 104,285.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,000.60 : 187,678.34 = 75,570.14 : x
  2. Step 2: Convert to fraction form
    136,000.60/187,678.34 = 75,570.14/x
  3. Step 3: Cross multiply
    136,000.60x = 187,678.34 × 75,570.14
  4. Step 4: Simplify right side
    136,000.60x = 14,182,878,050.92
  5. Step 5: Solve for x
    x = 14,182,878,050.92/136,000.60
  6. Step 6: Final answer
    x = 104,285.41

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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.