Home / 124,905.60-187,444.80-89,870.40

Finding the Fourth Proportional to 124,905.60, 187,444.80 and 89,870.40

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Solution

The fourth proportional to 124,905.60, 187,444.80 and 89,870.40 is: 134,867.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,905.60 : 187,444.80 = 89,870.40 : x
  2. Step 2: Convert to fraction form
    124,905.60/187,444.80 = 89,870.40/x
  3. Step 3: Cross multiply
    124,905.60x = 187,444.80 × 89,870.40
  4. Step 4: Simplify right side
    124,905.60x = 16,845,739,153.92
  5. Step 5: Solve for x
    x = 16,845,739,153.92/124,905.60
  6. Step 6: Final answer
    x = 134,867.77

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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.