Home / 112,959.48-155,885.28-61,972.32

Finding the Fourth Proportional to 112,959.48, 155,885.28 and 61,972.32

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Solution

The fourth proportional to 112,959.48, 155,885.28 and 61,972.32 is: 85,522.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,959.48 : 155,885.28 = 61,972.32 : x
  2. Step 2: Convert to fraction form
    112,959.48/155,885.28 = 61,972.32/x
  3. Step 3: Cross multiply
    112,959.48x = 155,885.28 × 61,972.32
  4. Step 4: Simplify right side
    112,959.48x = 9,660,572,455.45
  5. Step 5: Solve for x
    x = 9,660,572,455.45/112,959.48
  6. Step 6: Final answer
    x = 85,522.46

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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.