Home / 112,988.88-155,966.58-97,009.20

Finding the Fourth Proportional to 112,988.88, 155,966.58 and 97,009.20

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Solution

The fourth proportional to 112,988.88, 155,966.58 and 97,009.20 is: 133,908.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,988.88 : 155,966.58 = 97,009.20 : x
  2. Step 2: Convert to fraction form
    112,988.88/155,966.58 = 97,009.20/x
  3. Step 3: Cross multiply
    112,988.88x = 155,966.58 × 97,009.20
  4. Step 4: Simplify right side
    112,988.88x = 15,130,193,152.54
  5. Step 5: Solve for x
    x = 15,130,193,152.54/112,988.88
  6. Step 6: Final answer
    x = 133,908.69

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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.