Home / 126,413.47-189,648.45-47,528.38

Finding the Fourth Proportional to 126,413.47, 189,648.45 and 47,528.38

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Solution

The fourth proportional to 126,413.47, 189,648.45 and 47,528.38 is: 71,303.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,413.47 : 189,648.45 = 47,528.38 : x
  2. Step 2: Convert to fraction form
    126,413.47/189,648.45 = 47,528.38/x
  3. Step 3: Cross multiply
    126,413.47x = 189,648.45 × 47,528.38
  4. Step 4: Simplify right side
    126,413.47x = 9,013,683,123.89
  5. Step 5: Solve for x
    x = 9,013,683,123.89/126,413.47
  6. Step 6: Final answer
    x = 71,303.19

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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.