Home / 112,693.16-155,516.10-61,706.12

Finding the Fourth Proportional to 112,693.16, 155,516.10 and 61,706.12

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Solution

The fourth proportional to 112,693.16, 155,516.10 and 61,706.12 is: 85,154.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,693.16 : 155,516.10 = 61,706.12 : x
  2. Step 2: Convert to fraction form
    112,693.16/155,516.10 = 61,706.12/x
  3. Step 3: Cross multiply
    112,693.16x = 155,516.10 × 61,706.12
  4. Step 4: Simplify right side
    112,693.16x = 9,596,295,128.53
  5. Step 5: Solve for x
    x = 9,596,295,128.53/112,693.16
  6. Step 6: Final answer
    x = 85,154.19

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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.