Home / 105,344.78-145,374.81-57,597.62

Finding the Fourth Proportional to 105,344.78, 145,374.81 and 57,597.62

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Solution

The fourth proportional to 105,344.78, 145,374.81 and 57,597.62 is: 79,484.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,344.78 : 145,374.81 = 57,597.62 : x
  2. Step 2: Convert to fraction form
    105,344.78/145,374.81 = 57,597.62/x
  3. Step 3: Cross multiply
    105,344.78x = 145,374.81 × 57,597.62
  4. Step 4: Simplify right side
    105,344.78x = 8,373,243,211.40
  5. Step 5: Solve for x
    x = 8,373,243,211.40/105,344.78
  6. Step 6: Final answer
    x = 79,484.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.