Home / 187,041.32-258,117.01-102,158.58

Finding the Fourth Proportional to 187,041.32, 258,117.01 and 102,158.58

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Solution

The fourth proportional to 187,041.32, 258,117.01 and 102,158.58 is: 140,978.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,041.32 : 258,117.01 = 102,158.58 : x
  2. Step 2: Convert to fraction form
    187,041.32/258,117.01 = 102,158.58/x
  3. Step 3: Cross multiply
    187,041.32x = 258,117.01 × 102,158.58
  4. Step 4: Simplify right side
    187,041.32x = 26,368,867,215.45
  5. Step 5: Solve for x
    x = 26,368,867,215.45/187,041.32
  6. Step 6: Final answer
    x = 140,978.84

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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.