Home / 102,943,985.15-142,062,185.03-55,900,639.71

Finding the Fourth Proportional to 102,943,985.15, 142,062,185.03 and 55,900,639.71

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Solution

The fourth proportional to 102,943,985.15, 142,062,185.03 and 55,900,639.71 is: 77,142,603.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,943,985.15 : 142,062,185.03 = 55,900,639.71 : x
  2. Step 2: Convert to fraction form
    102,943,985.15/142,062,185.03 = 55,900,639.71/x
  3. Step 3: Cross multiply
    102,943,985.15x = 142,062,185.03 × 55,900,639.71
  4. Step 4: Simplify right side
    102,943,985.15x = 7,941,367,021,497,883
  5. Step 5: Solve for x
    x = 7,941,367,021,497,883/102,943,985.15
  6. Step 6: Final answer
    x = 77,142,603.43

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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.