Home / 103,618,745.48-142,942,246.86-61,773,325.12

Finding the Fourth Proportional to 103,618,745.48, 142,942,246.86 and 61,773,325.12

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Solution

The fourth proportional to 103,618,745.48, 142,942,246.86 and 61,773,325.12 is: 85,216,413.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,618,745.48 : 142,942,246.86 = 61,773,325.12 : x
  2. Step 2: Convert to fraction form
    103,618,745.48/142,942,246.86 = 61,773,325.12/x
  3. Step 3: Cross multiply
    103,618,745.48x = 142,942,246.86 × 61,773,325.12
  4. Step 4: Simplify right side
    103,618,745.48x = 8,830,017,888,666,080
  5. Step 5: Solve for x
    x = 8,830,017,888,666,080/103,618,745.48
  6. Step 6: Final answer
    x = 85,216,413.77

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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.