Home / 180,816.65-249,534.89-100,239.07

Finding the Fourth Proportional to 180,816.65, 249,534.89 and 100,239.07

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Solution

The fourth proportional to 180,816.65, 249,534.89 and 100,239.07 is: 138,334.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,816.65 : 249,534.89 = 100,239.07 : x
  2. Step 2: Convert to fraction form
    180,816.65/249,534.89 = 100,239.07/x
  3. Step 3: Cross multiply
    180,816.65x = 249,534.89 × 100,239.07
  4. Step 4: Simplify right side
    180,816.65x = 25,013,143,557.28
  5. Step 5: Solve for x
    x = 25,013,143,557.28/180,816.65
  6. Step 6: Final answer
    x = 138,334.29

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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.