Home / 157,642.80-217,547.06-112,399.60

Finding the Fourth Proportional to 157,642.80, 217,547.06 and 112,399.60

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Solution

The fourth proportional to 157,642.80, 217,547.06 and 112,399.60 is: 155,111.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,642.80 : 217,547.06 = 112,399.60 : x
  2. Step 2: Convert to fraction form
    157,642.80/217,547.06 = 112,399.60/x
  3. Step 3: Cross multiply
    157,642.80x = 217,547.06 × 112,399.60
  4. Step 4: Simplify right side
    157,642.80x = 24,452,202,525.18
  5. Step 5: Solve for x
    x = 24,452,202,525.18/157,642.80
  6. Step 6: Final answer
    x = 155,111.45

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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.