Home / 145,623.40-218,435.18-40,442.36

Finding the Fourth Proportional to 145,623.40, 218,435.18 and 40,442.36

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Solution

The fourth proportional to 145,623.40, 218,435.18 and 40,442.36 is: 60,663.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,623.40 : 218,435.18 = 40,442.36 : x
  2. Step 2: Convert to fraction form
    145,623.40/218,435.18 = 40,442.36/x
  3. Step 3: Cross multiply
    145,623.40x = 218,435.18 × 40,442.36
  4. Step 4: Simplify right side
    145,623.40x = 8,834,034,186.22
  5. Step 5: Solve for x
    x = 8,834,034,186.22/145,623.40
  6. Step 6: Final answer
    x = 60,663.56

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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.