Home / 103,426,255.70-155,139,383.55-72,815,254.10

Finding the Fourth Proportional to 103,426,255.70, 155,139,383.55 and 72,815,254.10

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Solution

The fourth proportional to 103,426,255.70, 155,139,383.55 and 72,815,254.10 is: 109,222,881.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,426,255.70 : 155,139,383.55 = 72,815,254.10 : x
  2. Step 2: Convert to fraction form
    103,426,255.70/155,139,383.55 = 72,815,254.10/x
  3. Step 3: Cross multiply
    103,426,255.70x = 155,139,383.55 × 72,815,254.10
  4. Step 4: Simplify right side
    103,426,255.70x = 11,296,513,634,110,610
  5. Step 5: Solve for x
    x = 11,296,513,634,110,610/103,426,255.70
  6. Step 6: Final answer
    x = 109,222,881.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.