Home / 249,139.40-343,812.80-135,962.15

Finding the Fourth Proportional to 249,139.40, 343,812.80 and 135,962.15

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Solution

The fourth proportional to 249,139.40, 343,812.80 and 135,962.15 is: 187,628.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,139.40 : 343,812.80 = 135,962.15 : x
  2. Step 2: Convert to fraction form
    249,139.40/343,812.80 = 135,962.15/x
  3. Step 3: Cross multiply
    249,139.40x = 343,812.80 × 135,962.15
  4. Step 4: Simplify right side
    249,139.40x = 46,745,526,106.36
  5. Step 5: Solve for x
    x = 46,745,526,106.36/249,139.40
  6. Step 6: Final answer
    x = 187,628.00

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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.