Home / 113,979,877.89-157,292,366-61,768,913.55

Finding the Fourth Proportional to 113,979,877.89, 157,292,366 and 61,768,913.55

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Solution

The fourth proportional to 113,979,877.89, 157,292,366 and 61,768,913.55 is: 85,241,173.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,979,877.89 : 157,292,366 = 61,768,913.55 : x
  2. Step 2: Convert to fraction form
    113,979,877.89/157,292,366 = 61,768,913.55/x
  3. Step 3: Cross multiply
    113,979,877.89x = 157,292,366 × 61,768,913.55
  4. Step 4: Simplify right side
    113,979,877.89x = 9,715,778,557,528,958
  5. Step 5: Solve for x
    x = 9,715,778,557,528,958/113,979,877.89
  6. Step 6: Final answer
    x = 85,241,173.59

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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.