Home / 145,855.13-218,782.70-47,359.13

Finding the Fourth Proportional to 145,855.13, 218,782.70 and 47,359.13

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Solution

The fourth proportional to 145,855.13, 218,782.70 and 47,359.13 is: 71,038.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,855.13 : 218,782.70 = 47,359.13 : x
  2. Step 2: Convert to fraction form
    145,855.13/218,782.70 = 47,359.13/x
  3. Step 3: Cross multiply
    145,855.13x = 218,782.70 × 47,359.13
  4. Step 4: Simplify right side
    145,855.13x = 10,361,357,000.34
  5. Step 5: Solve for x
    x = 10,361,357,000.34/145,855.13
  6. Step 6: Final answer
    x = 71,038.69

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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.