Home / 142,056.18-196,111.24-103,772.75

Finding the Fourth Proportional to 142,056.18, 196,111.24 and 103,772.75

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Solution

The fourth proportional to 142,056.18, 196,111.24 and 103,772.75 is: 143,260.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,056.18 : 196,111.24 = 103,772.75 : x
  2. Step 2: Convert to fraction form
    142,056.18/196,111.24 = 103,772.75/x
  3. Step 3: Cross multiply
    142,056.18x = 196,111.24 × 103,772.75
  4. Step 4: Simplify right side
    142,056.18x = 20,351,001,931.00
  5. Step 5: Solve for x
    x = 20,351,001,931.00/142,056.18
  6. Step 6: Final answer
    x = 143,260.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.