Home / 103,626,831.50-142,945,078.35-66,957,402.50

Finding the Fourth Proportional to 103,626,831.50, 142,945,078.35 and 66,957,402.50

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Solution

The fourth proportional to 103,626,831.50, 142,945,078.35 and 66,957,402.50 is: 92,362,479.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,626,831.50 : 142,945,078.35 = 66,957,402.50 : x
  2. Step 2: Convert to fraction form
    103,626,831.50/142,945,078.35 = 66,957,402.50/x
  3. Step 3: Cross multiply
    103,626,831.50x = 142,945,078.35 × 66,957,402.50
  4. Step 4: Simplify right side
    103,626,831.50x = 9,571,231,146,547,394
  5. Step 5: Solve for x
    x = 9,571,231,146,547,394/103,626,831.50
  6. Step 6: Final answer
    x = 92,362,479.95

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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.