Home / 142,477.11-213,726.78-47,707.65

Finding the Fourth Proportional to 142,477.11, 213,726.78 and 47,707.65

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Solution

The fourth proportional to 142,477.11, 213,726.78 and 47,707.65 is: 71,565.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,477.11 : 213,726.78 = 47,707.65 : x
  2. Step 2: Convert to fraction form
    142,477.11/213,726.78 = 47,707.65/x
  3. Step 3: Cross multiply
    142,477.11x = 213,726.78 × 47,707.65
  4. Step 4: Simplify right side
    142,477.11x = 10,196,402,415.87
  5. Step 5: Solve for x
    x = 10,196,402,415.87/142,477.11
  6. Step 6: Final answer
    x = 71,565.20

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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.