Home / 142,091.60-213,058.90-89,388.32

Finding the Fourth Proportional to 142,091.60, 213,058.90 and 89,388.32

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Solution

The fourth proportional to 142,091.60, 213,058.90 and 89,388.32 is: 134,033.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,091.60 : 213,058.90 = 89,388.32 : x
  2. Step 2: Convert to fraction form
    142,091.60/213,058.90 = 89,388.32/x
  3. Step 3: Cross multiply
    142,091.60x = 213,058.90 × 89,388.32
  4. Step 4: Simplify right side
    142,091.60x = 19,044,977,132.05
  5. Step 5: Solve for x
    x = 19,044,977,132.05/142,091.60
  6. Step 6: Final answer
    x = 134,033.10

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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.