Home / 112,499.09-155,242.40-61,502.34

Finding the Fourth Proportional to 112,499.09, 155,242.40 and 61,502.34

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Solution

The fourth proportional to 112,499.09, 155,242.40 and 61,502.34 is: 84,869.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,499.09 : 155,242.40 = 61,502.34 : x
  2. Step 2: Convert to fraction form
    112,499.09/155,242.40 = 61,502.34/x
  3. Step 3: Cross multiply
    112,499.09x = 155,242.40 × 61,502.34
  4. Step 4: Simplify right side
    112,499.09x = 9,547,770,559.70
  5. Step 5: Solve for x
    x = 9,547,770,559.70/112,499.09
  6. Step 6: Final answer
    x = 84,869.76

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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.