Home / 137,330.34-189,535.06-99,213.20

Finding the Fourth Proportional to 137,330.34, 189,535.06 and 99,213.20

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Solution

The fourth proportional to 137,330.34, 189,535.06 and 99,213.20 is: 136,928.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,330.34 : 189,535.06 = 99,213.20 : x
  2. Step 2: Convert to fraction form
    137,330.34/189,535.06 = 99,213.20/x
  3. Step 3: Cross multiply
    137,330.34x = 189,535.06 × 99,213.20
  4. Step 4: Simplify right side
    137,330.34x = 18,804,379,701.89
  5. Step 5: Solve for x
    x = 18,804,379,701.89/137,330.34
  6. Step 6: Final answer
    x = 136,928.08

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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.