Home / 112,897.40-169,413.30-42,783.80

Finding the Fourth Proportional to 112,897.40, 169,413.30 and 42,783.80

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Solution

The fourth proportional to 112,897.40, 169,413.30 and 42,783.80 is: 64,201.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,897.40 : 169,413.30 = 42,783.80 : x
  2. Step 2: Convert to fraction form
    112,897.40/169,413.30 = 42,783.80/x
  3. Step 3: Cross multiply
    112,897.40x = 169,413.30 × 42,783.80
  4. Step 4: Simplify right side
    112,897.40x = 7,248,144,744.54
  5. Step 5: Solve for x
    x = 7,248,144,744.54/112,897.40
  6. Step 6: Final answer
    x = 64,201.17

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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.