Home / 105,145.87-145,088.53-59,829.61

Finding the Fourth Proportional to 105,145.87, 145,088.53 and 59,829.61

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Solution

The fourth proportional to 105,145.87, 145,088.53 and 59,829.61 is: 82,557.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,145.87 : 145,088.53 = 59,829.61 : x
  2. Step 2: Convert to fraction form
    105,145.87/145,088.53 = 59,829.61/x
  3. Step 3: Cross multiply
    105,145.87x = 145,088.53 × 59,829.61
  4. Step 4: Simplify right side
    105,145.87x = 8,680,590,165.37
  5. Step 5: Solve for x
    x = 8,680,590,165.37/105,145.87
  6. Step 6: Final answer
    x = 82,557.60

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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.