Home / 112,395.68-155,101.46-61,410.18

Finding the Fourth Proportional to 112,395.68, 155,101.46 and 61,410.18

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Solution

The fourth proportional to 112,395.68, 155,101.46 and 61,410.18 is: 84,743.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,395.68 : 155,101.46 = 61,410.18 : x
  2. Step 2: Convert to fraction form
    112,395.68/155,101.46 = 61,410.18/x
  3. Step 3: Cross multiply
    112,395.68x = 155,101.46 × 61,410.18
  4. Step 4: Simplify right side
    112,395.68x = 9,524,808,269.81
  5. Step 5: Solve for x
    x = 9,524,808,269.81/112,395.68
  6. Step 6: Final answer
    x = 84,743.54

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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.