Home / 145,743.80-218,615.70-47,247.80

Finding the Fourth Proportional to 145,743.80, 218,615.70 and 47,247.80

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Solution

The fourth proportional to 145,743.80, 218,615.70 and 47,247.80 is: 70,871.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,743.80 : 218,615.70 = 47,247.80 : x
  2. Step 2: Convert to fraction form
    145,743.80/218,615.70 = 47,247.80/x
  3. Step 3: Cross multiply
    145,743.80x = 218,615.70 × 47,247.80
  4. Step 4: Simplify right side
    145,743.80x = 10,329,110,870.46
  5. Step 5: Solve for x
    x = 10,329,110,870.46/145,743.80
  6. Step 6: Final answer
    x = 70,871.70

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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.