Home / 142,172.64-213,258.88-42,334.24

Finding the Fourth Proportional to 142,172.64, 213,258.88 and 42,334.24

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Solution

The fourth proportional to 142,172.64, 213,258.88 and 42,334.24 is: 63,501.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,172.64 : 213,258.88 = 42,334.24 : x
  2. Step 2: Convert to fraction form
    142,172.64/213,258.88 = 42,334.24/x
  3. Step 3: Cross multiply
    142,172.64x = 213,258.88 × 42,334.24
  4. Step 4: Simplify right side
    142,172.64x = 9,028,152,608.05
  5. Step 5: Solve for x
    x = 9,028,152,608.05/142,172.64
  6. Step 6: Final answer
    x = 63,501.34

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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.