Home / 166,413.90-249,620.85-103,428.30

Finding the Fourth Proportional to 166,413.90, 249,620.85 and 103,428.30

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Solution

The fourth proportional to 166,413.90, 249,620.85 and 103,428.30 is: 155,142.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,413.90 : 249,620.85 = 103,428.30 : x
  2. Step 2: Convert to fraction form
    166,413.90/249,620.85 = 103,428.30/x
  3. Step 3: Cross multiply
    166,413.90x = 249,620.85 × 103,428.30
  4. Step 4: Simplify right side
    166,413.90x = 25,817,860,160.06
  5. Step 5: Solve for x
    x = 25,817,860,160.06/166,413.90
  6. Step 6: Final answer
    x = 155,142.45

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1.5x scale

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.