Home / 145,926.72-218,888.64-47,430.72

Finding the Fourth Proportional to 145,926.72, 218,888.64 and 47,430.72

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Solution

The fourth proportional to 145,926.72, 218,888.64 and 47,430.72 is: 71,145.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,926.72 : 218,888.64 = 47,430.72 : x
  2. Step 2: Convert to fraction form
    145,926.72/218,888.64 = 47,430.72/x
  3. Step 3: Cross multiply
    145,926.72x = 218,888.64 × 47,430.72
  4. Step 4: Simplify right side
    145,926.72x = 10,382,045,795.02
  5. Step 5: Solve for x
    x = 10,382,045,795.02/145,926.72
  6. Step 6: Final answer
    x = 71,145.61

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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.