Home / 147,275.63-203,239.09-89,902.88

Finding the Fourth Proportional to 147,275.63, 203,239.09 and 89,902.88

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Solution

The fourth proportional to 147,275.63, 203,239.09 and 89,902.88 is: 124,065.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,275.63 : 203,239.09 = 89,902.88 : x
  2. Step 2: Convert to fraction form
    147,275.63/203,239.09 = 89,902.88/x
  3. Step 3: Cross multiply
    147,275.63x = 203,239.09 × 89,902.88
  4. Step 4: Simplify right side
    147,275.63x = 18,271,779,377.91
  5. Step 5: Solve for x
    x = 18,271,779,377.91/147,275.63
  6. Step 6: Final answer
    x = 124,065.19

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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.