Home / 145,868.16-218,802.24-40,686.96

Finding the Fourth Proportional to 145,868.16, 218,802.24 and 40,686.96

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Solution

The fourth proportional to 145,868.16, 218,802.24 and 40,686.96 is: 61,030.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,868.16 : 218,802.24 = 40,686.96 : x
  2. Step 2: Convert to fraction form
    145,868.16/218,802.24 = 40,686.96/x
  3. Step 3: Cross multiply
    145,868.16x = 218,802.24 × 40,686.96
  4. Step 4: Simplify right side
    145,868.16x = 8,902,397,986.79
  5. Step 5: Solve for x
    x = 8,902,397,986.79/145,868.16
  6. Step 6: Final answer
    x = 61,030.44

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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.