Home / 102,943,985.90-142,062,186.06-55,900,640.46

Finding the Fourth Proportional to 102,943,985.90, 142,062,186.06 and 55,900,640.46

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Solution

The fourth proportional to 102,943,985.90, 142,062,186.06 and 55,900,640.46 is: 77,142,604.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,943,985.90 : 142,062,186.06 = 55,900,640.46 : x
  2. Step 2: Convert to fraction form
    102,943,985.90/142,062,186.06 = 55,900,640.46/x
  3. Step 3: Cross multiply
    102,943,985.90x = 142,062,186.06 × 55,900,640.46
  4. Step 4: Simplify right side
    102,943,985.90x = 7,941,367,185,901,684
  5. Step 5: Solve for x
    x = 7,941,367,185,901,684/102,943,985.90
  6. Step 6: Final answer
    x = 77,142,604.46

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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.