Home / 142,478.04-212,664.75-125,668.56

Finding the Fourth Proportional to 142,478.04, 212,664.75 and 125,668.56

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Solution

The fourth proportional to 142,478.04, 212,664.75 and 125,668.56 is: 187,574.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,478.04 : 212,664.75 = 125,668.56 : x
  2. Step 2: Convert to fraction form
    142,478.04/212,664.75 = 125,668.56/x
  3. Step 3: Cross multiply
    142,478.04x = 212,664.75 × 125,668.56
  4. Step 4: Simplify right side
    142,478.04x = 26,725,272,895.26
  5. Step 5: Solve for x
    x = 26,725,272,895.26/142,478.04
  6. Step 6: Final answer
    x = 187,574.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.