Home / 105,263.19-145,263.24-56,865.14

Finding the Fourth Proportional to 105,263.19, 145,263.24 and 56,865.14

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Solution

The fourth proportional to 105,263.19, 145,263.24 and 56,865.14 is: 78,473.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,263.19 : 145,263.24 = 56,865.14 : x
  2. Step 2: Convert to fraction form
    105,263.19/145,263.24 = 56,865.14/x
  3. Step 3: Cross multiply
    105,263.19x = 145,263.24 × 56,865.14
  4. Step 4: Simplify right side
    105,263.19x = 8,260,413,753.14
  5. Step 5: Solve for x
    x = 8,260,413,753.14/105,263.19
  6. Step 6: Final answer
    x = 78,473.91

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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.