Home / 112,948.20-155,866.18-69,916.20

Finding the Fourth Proportional to 112,948.20, 155,866.18 and 69,916.20

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Solution

The fourth proportional to 112,948.20, 155,866.18 and 69,916.20 is: 96,482.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,948.20 : 155,866.18 = 69,916.20 : x
  2. Step 2: Convert to fraction form
    112,948.20/155,866.18 = 69,916.20/x
  3. Step 3: Cross multiply
    112,948.20x = 155,866.18 × 69,916.20
  4. Step 4: Simplify right side
    112,948.20x = 10,897,571,014.12
  5. Step 5: Solve for x
    x = 10,897,571,014.12/112,948.20
  6. Step 6: Final answer
    x = 96,482.91

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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.