Home / 112,870.85-155,763.52-61,888.23

Finding the Fourth Proportional to 112,870.85, 155,763.52 and 61,888.23

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Solution

The fourth proportional to 112,870.85, 155,763.52 and 61,888.23 is: 85,406.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,870.85 : 155,763.52 = 61,888.23 : x
  2. Step 2: Convert to fraction form
    112,870.85/155,763.52 = 61,888.23/x
  3. Step 3: Cross multiply
    112,870.85x = 155,763.52 × 61,888.23
  4. Step 4: Simplify right side
    112,870.85x = 9,639,928,396.65
  5. Step 5: Solve for x
    x = 9,639,928,396.65/112,870.85
  6. Step 6: Final answer
    x = 85,406.72

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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.