Home / 105,124.80-145,091.03-62,686.07

Finding the Fourth Proportional to 105,124.80, 145,091.03 and 62,686.07

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Solution

The fourth proportional to 105,124.80, 145,091.03 and 62,686.07 is: 86,517.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,124.80 : 145,091.03 = 62,686.07 : x
  2. Step 2: Convert to fraction form
    105,124.80/145,091.03 = 62,686.07/x
  3. Step 3: Cross multiply
    105,124.80x = 145,091.03 × 62,686.07
  4. Step 4: Simplify right side
    105,124.80x = 9,095,185,737.50
  5. Step 5: Solve for x
    x = 9,095,185,737.50/105,124.80
  6. Step 6: Final answer
    x = 86,517.98

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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.