Home / 103,342.39-155,014.40-28,466.66

Finding the Fourth Proportional to 103,342.39, 155,014.40 and 28,466.66

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Solution

The fourth proportional to 103,342.39, 155,014.40 and 28,466.66 is: 42,700.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,342.39 : 155,014.40 = 28,466.66 : x
  2. Step 2: Convert to fraction form
    103,342.39/155,014.40 = 28,466.66/x
  3. Step 3: Cross multiply
    103,342.39x = 155,014.40 × 28,466.66
  4. Step 4: Simplify right side
    103,342.39x = 4,412,742,678.61
  5. Step 5: Solve for x
    x = 4,412,742,678.61/103,342.39
  6. Step 6: Final answer
    x = 42,700.22

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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.