Home / 180,870.30-249,603.12-100,298.79

Finding the Fourth Proportional to 180,870.30, 249,603.12 and 100,298.79

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Solution

The fourth proportional to 180,870.30, 249,603.12 and 100,298.79 is: 138,413.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,870.30 : 249,603.12 = 100,298.79 : x
  2. Step 2: Convert to fraction form
    180,870.30/249,603.12 = 100,298.79/x
  3. Step 3: Cross multiply
    180,870.30x = 249,603.12 × 100,298.79
  4. Step 4: Simplify right side
    180,870.30x = 25,034,890,916.22
  5. Step 5: Solve for x
    x = 25,034,890,916.22/180,870.30
  6. Step 6: Final answer
    x = 138,413.50

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1.5x scale

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.