Home / 105,732,263.78-145,919,756.94-61,693,450.32

Finding the Fourth Proportional to 105,732,263.78, 145,919,756.94 and 61,693,450.32

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Solution

The fourth proportional to 105,732,263.78, 145,919,756.94 and 61,693,450.32 is: 85,142,348.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,732,263.78 : 145,919,756.94 = 61,693,450.32 : x
  2. Step 2: Convert to fraction form
    105,732,263.78/145,919,756.94 = 61,693,450.32/x
  3. Step 3: Cross multiply
    105,732,263.78x = 145,919,756.94 × 61,693,450.32
  4. Step 4: Simplify right side
    105,732,263.78x = 9,002,293,275,484,365
  5. Step 5: Solve for x
    x = 9,002,293,275,484,365/105,732,263.78
  6. Step 6: Final answer
    x = 85,142,348.74

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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.