Home / 142,128.60-213,173.48-42,304.20

Finding the Fourth Proportional to 142,128.60, 213,173.48 and 42,304.20

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Solution

The fourth proportional to 142,128.60, 213,173.48 and 42,304.20 is: 63,450.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,128.60 : 213,173.48 = 42,304.20 : x
  2. Step 2: Convert to fraction form
    142,128.60/213,173.48 = 42,304.20/x
  3. Step 3: Cross multiply
    142,128.60x = 213,173.48 × 42,304.20
  4. Step 4: Simplify right side
    142,128.60x = 9,018,133,532.62
  5. Step 5: Solve for x
    x = 9,018,133,532.62/142,128.60
  6. Step 6: Final answer
    x = 63,450.52

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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.