Home / 138,547.28-191,106.60-96,090.32

Finding the Fourth Proportional to 138,547.28, 191,106.60 and 96,090.32

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Solution

The fourth proportional to 138,547.28, 191,106.60 and 96,090.32 is: 132,543.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,547.28 : 191,106.60 = 96,090.32 : x
  2. Step 2: Convert to fraction form
    138,547.28/191,106.60 = 96,090.32/x
  3. Step 3: Cross multiply
    138,547.28x = 191,106.60 × 96,090.32
  4. Step 4: Simplify right side
    138,547.28x = 18,363,494,348.11
  5. Step 5: Solve for x
    x = 18,363,494,348.11/138,547.28
  6. Step 6: Final answer
    x = 132,543.16

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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.