Home / 142,054.18-213,115.95-47,284.18

Finding the Fourth Proportional to 142,054.18, 213,115.95 and 47,284.18

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Solution

The fourth proportional to 142,054.18, 213,115.95 and 47,284.18 is: 70,937.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,054.18 : 213,115.95 = 47,284.18 : x
  2. Step 2: Convert to fraction form
    142,054.18/213,115.95 = 47,284.18/x
  3. Step 3: Cross multiply
    142,054.18x = 213,115.95 × 47,284.18
  4. Step 4: Simplify right side
    142,054.18x = 10,077,012,940.67
  5. Step 5: Solve for x
    x = 10,077,012,940.67/142,054.18
  6. Step 6: Final answer
    x = 70,937.81

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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.