Home / 142,258.72-213,381.36-35,643.68

Finding the Fourth Proportional to 142,258.72, 213,381.36 and 35,643.68

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Solution

The fourth proportional to 142,258.72, 213,381.36 and 35,643.68 is: 53,463.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,258.72 : 213,381.36 = 35,643.68 : x
  2. Step 2: Convert to fraction form
    142,258.72/213,381.36 = 35,643.68/x
  3. Step 3: Cross multiply
    142,258.72x = 213,381.36 × 35,643.68
  4. Step 4: Simplify right side
    142,258.72x = 7,605,696,913.80
  5. Step 5: Solve for x
    x = 7,605,696,913.80/142,258.72
  6. Step 6: Final answer
    x = 53,463.84

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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.