Home / 105,580.14-145,700.62-57,835.20

Finding the Fourth Proportional to 105,580.14, 145,700.62 and 57,835.20

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Solution

The fourth proportional to 105,580.14, 145,700.62 and 57,835.20 is: 79,812.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,580.14 : 145,700.62 = 57,835.20 : x
  2. Step 2: Convert to fraction form
    105,580.14/145,700.62 = 57,835.20/x
  3. Step 3: Cross multiply
    105,580.14x = 145,700.62 × 57,835.20
  4. Step 4: Simplify right side
    105,580.14x = 8,426,624,497.82
  5. Step 5: Solve for x
    x = 8,426,624,497.82/105,580.14
  6. Step 6: Final answer
    x = 79,812.59

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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.