Home / 112,400.55-155,110.93-61,412.18

Finding the Fourth Proportional to 112,400.55, 155,110.93 and 61,412.18

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Solution

The fourth proportional to 112,400.55, 155,110.93 and 61,412.18 is: 84,747.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,400.55 : 155,110.93 = 61,412.18 : x
  2. Step 2: Convert to fraction form
    112,400.55/155,110.93 = 61,412.18/x
  3. Step 3: Cross multiply
    112,400.55x = 155,110.93 × 61,412.18
  4. Step 4: Simplify right side
    112,400.55x = 9,525,700,353.13
  5. Step 5: Solve for x
    x = 9,525,700,353.13/112,400.55
  6. Step 6: Final answer
    x = 84,747.81

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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.