Home / 103,688.65-143,088.75-58,366.49

Finding the Fourth Proportional to 103,688.65, 143,088.75 and 58,366.49

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Solution

The fourth proportional to 103,688.65, 143,088.75 and 58,366.49 is: 80,544.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,688.65 : 143,088.75 = 58,366.49 : x
  2. Step 2: Convert to fraction form
    103,688.65/143,088.75 = 58,366.49/x
  3. Step 3: Cross multiply
    103,688.65x = 143,088.75 × 58,366.49
  4. Step 4: Simplify right side
    103,688.65x = 8,351,587,698.25
  5. Step 5: Solve for x
    x = 8,351,587,698.25/103,688.65
  6. Step 6: Final answer
    x = 80,544.86

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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.