Home / 103,831.08-143,275.14-63,554.28

Finding the Fourth Proportional to 103,831.08, 143,275.14 and 63,554.28

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Solution

The fourth proportional to 103,831.08, 143,275.14 and 63,554.28 is: 87,697.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,831.08 : 143,275.14 = 63,554.28 : x
  2. Step 2: Convert to fraction form
    103,831.08/143,275.14 = 63,554.28/x
  3. Step 3: Cross multiply
    103,831.08x = 143,275.14 × 63,554.28
  4. Step 4: Simplify right side
    103,831.08x = 9,105,748,364.60
  5. Step 5: Solve for x
    x = 9,105,748,364.60/103,831.08
  6. Step 6: Final answer
    x = 87,697.71

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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.