Home / 112,369.20-155,070.02-61,382.64

Finding the Fourth Proportional to 112,369.20, 155,070.02 and 61,382.64

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Solution

The fourth proportional to 112,369.20, 155,070.02 and 61,382.64 is: 84,708.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,369.20 : 155,070.02 = 61,382.64 : x
  2. Step 2: Convert to fraction form
    112,369.20/155,070.02 = 61,382.64/x
  3. Step 3: Cross multiply
    112,369.20x = 155,070.02 × 61,382.64
  4. Step 4: Simplify right side
    112,369.20x = 9,518,607,212.45
  5. Step 5: Solve for x
    x = 9,518,607,212.45/112,369.20
  6. Step 6: Final answer
    x = 84,708.33

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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.