Home / 105,432.14-145,450.14-61,802.58

Finding the Fourth Proportional to 105,432.14, 145,450.14 and 61,802.58

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Solution

The fourth proportional to 105,432.14, 145,450.14 and 61,802.58 is: 85,260.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,432.14 : 145,450.14 = 61,802.58 : x
  2. Step 2: Convert to fraction form
    105,432.14/145,450.14 = 61,802.58/x
  3. Step 3: Cross multiply
    105,432.14x = 145,450.14 × 61,802.58
  4. Step 4: Simplify right side
    105,432.14x = 8,989,193,582.70
  5. Step 5: Solve for x
    x = 8,989,193,582.70/105,432.14
  6. Step 6: Final answer
    x = 85,260.47

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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.