Home / 181,106.55-249,915.20-100,534.05

Finding the Fourth Proportional to 181,106.55, 249,915.20 and 100,534.05

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Solution

The fourth proportional to 181,106.55, 249,915.20 and 100,534.05 is: 138,730.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,106.55 : 249,915.20 = 100,534.05 : x
  2. Step 2: Convert to fraction form
    181,106.55/249,915.20 = 100,534.05/x
  3. Step 3: Cross multiply
    181,106.55x = 249,915.20 × 100,534.05
  4. Step 4: Simplify right side
    181,106.55x = 25,124,986,709.89
  5. Step 5: Solve for x
    x = 25,124,986,709.89/181,106.55
  6. Step 6: Final answer
    x = 138,730.41

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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.