Home / 180,915.40-249,499.83-112,938.65

Finding the Fourth Proportional to 180,915.40, 249,499.83 and 112,938.65

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Solution

The fourth proportional to 180,915.40, 249,499.83 and 112,938.65 is: 155,753.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,915.40 : 249,499.83 = 112,938.65 : x
  2. Step 2: Convert to fraction form
    180,915.40/249,499.83 = 112,938.65/x
  3. Step 3: Cross multiply
    180,915.40x = 249,499.83 × 112,938.65
  4. Step 4: Simplify right side
    180,915.40x = 28,178,175,331.69
  5. Step 5: Solve for x
    x = 28,178,175,331.69/180,915.40
  6. Step 6: Final answer
    x = 155,753.33

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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.