Home / 142,870.29-214,290.40-58,639.36

Finding the Fourth Proportional to 142,870.29, 214,290.40 and 58,639.36

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Solution

The fourth proportional to 142,870.29, 214,290.40 and 58,639.36 is: 87,952.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,870.29 : 214,290.40 = 58,639.36 : x
  2. Step 2: Convert to fraction form
    142,870.29/214,290.40 = 58,639.36/x
  3. Step 3: Cross multiply
    142,870.29x = 214,290.40 × 58,639.36
  4. Step 4: Simplify right side
    142,870.29x = 12,565,851,910.14
  5. Step 5: Solve for x
    x = 12,565,851,910.14/142,870.29
  6. Step 6: Final answer
    x = 87,952.87

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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.