Home / 112,920.18-155,693.54-97,579.28

Finding the Fourth Proportional to 112,920.18, 155,693.54 and 97,579.28

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Solution

The fourth proportional to 112,920.18, 155,693.54 and 97,579.28 is: 134,541.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,920.18 : 155,693.54 = 97,579.28 : x
  2. Step 2: Convert to fraction form
    112,920.18/155,693.54 = 97,579.28/x
  3. Step 3: Cross multiply
    112,920.18x = 155,693.54 × 97,579.28
  4. Step 4: Simplify right side
    112,920.18x = 15,192,464,167.03
  5. Step 5: Solve for x
    x = 15,192,464,167.03/112,920.18
  6. Step 6: Final answer
    x = 134,541.63

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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.