Home / 143,155.80-214,678.98-47,070.63

Finding the Fourth Proportional to 143,155.80, 214,678.98 and 47,070.63

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Solution

The fourth proportional to 143,155.80, 214,678.98 and 47,070.63 is: 70,587.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,155.80 : 214,678.98 = 47,070.63 : x
  2. Step 2: Convert to fraction form
    143,155.80/214,678.98 = 47,070.63/x
  3. Step 3: Cross multiply
    143,155.80x = 214,678.98 × 47,070.63
  4. Step 4: Simplify right side
    143,155.80x = 10,105,074,836.36
  5. Step 5: Solve for x
    x = 10,105,074,836.36/143,155.80
  6. Step 6: Final answer
    x = 70,587.95

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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.