Home / 112,370.16-155,064.88-61,382.14

Finding the Fourth Proportional to 112,370.16, 155,064.88 and 61,382.14

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Solution

The fourth proportional to 112,370.16, 155,064.88 and 61,382.14 is: 84,704.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,370.16 : 155,064.88 = 61,382.14 : x
  2. Step 2: Convert to fraction form
    112,370.16/155,064.88 = 61,382.14/x
  3. Step 3: Cross multiply
    112,370.16x = 155,064.88 × 61,382.14
  4. Step 4: Simplify right side
    112,370.16x = 9,518,214,173.24
  5. Step 5: Solve for x
    x = 9,518,214,173.24/112,370.16
  6. Step 6: Final answer
    x = 84,704.11

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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.