Home / 145,943.40-218,429.10-105,848.40

Finding the Fourth Proportional to 145,943.40, 218,429.10 and 105,848.40

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Solution

The fourth proportional to 145,943.40, 218,429.10 and 105,848.40 is: 158,420.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,943.40 : 218,429.10 = 105,848.40 : x
  2. Step 2: Convert to fraction form
    145,943.40/218,429.10 = 105,848.40/x
  3. Step 3: Cross multiply
    145,943.40x = 218,429.10 × 105,848.40
  4. Step 4: Simplify right side
    145,943.40x = 23,120,370,748.44
  5. Step 5: Solve for x
    x = 23,120,370,748.44/145,943.40
  6. Step 6: Final answer
    x = 158,420.12

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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.