Home / 105,288,470.28-145,249,127.28-68,130,759.42

Finding the Fourth Proportional to 105,288,470.28, 145,249,127.28 and 68,130,759.42

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Solution

The fourth proportional to 105,288,470.28, 145,249,127.28 and 68,130,759.42 is: 93,988,765.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,288,470.28 : 145,249,127.28 = 68,130,759.42 : x
  2. Step 2: Convert to fraction form
    105,288,470.28/145,249,127.28 = 68,130,759.42/x
  3. Step 3: Cross multiply
    105,288,470.28x = 145,249,127.28 × 68,130,759.42
  4. Step 4: Simplify right side
    105,288,470.28x = 9,895,933,346,678,640
  5. Step 5: Solve for x
    x = 9,895,933,346,678,640/105,288,470.28
  6. Step 6: Final answer
    x = 93,988,765.53

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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.