Home / 142,187.40-213,117.06-53,384.25

Finding the Fourth Proportional to 142,187.40, 213,117.06 and 53,384.25

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Solution

The fourth proportional to 142,187.40, 213,117.06 and 53,384.25 is: 80,014.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,187.40 : 213,117.06 = 53,384.25 : x
  2. Step 2: Convert to fraction form
    142,187.40/213,117.06 = 53,384.25/x
  3. Step 3: Cross multiply
    142,187.40x = 213,117.06 × 53,384.25
  4. Step 4: Simplify right side
    142,187.40x = 11,377,094,410.31
  5. Step 5: Solve for x
    x = 11,377,094,410.31/142,187.40
  6. Step 6: Final answer
    x = 80,014.79

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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.