Home / 142,421.54-213,706.56-103,301.58

Finding the Fourth Proportional to 142,421.54, 213,706.56 and 103,301.58

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Solution

The fourth proportional to 142,421.54, 213,706.56 and 103,301.58 is: 155,006.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,421.54 : 213,706.56 = 103,301.58 : x
  2. Step 2: Convert to fraction form
    142,421.54/213,706.56 = 103,301.58/x
  3. Step 3: Cross multiply
    142,421.54x = 213,706.56 × 103,301.58
  4. Step 4: Simplify right side
    142,421.54x = 22,076,225,304.36
  5. Step 5: Solve for x
    x = 22,076,225,304.36/142,421.54
  6. Step 6: Final answer
    x = 155,006.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.