Home / 105,348.24-145,384.20-57,603.60

Finding the Fourth Proportional to 105,348.24, 145,384.20 and 57,603.60

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Solution

The fourth proportional to 105,348.24, 145,384.20 and 57,603.60 is: 79,494.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,348.24 : 145,384.20 = 57,603.60 : x
  2. Step 2: Convert to fraction form
    105,348.24/145,384.20 = 57,603.60/x
  3. Step 3: Cross multiply
    105,348.24x = 145,384.20 × 57,603.60
  4. Step 4: Simplify right side
    105,348.24x = 8,374,653,303.12
  5. Step 5: Solve for x
    x = 8,374,653,303.12/105,348.24
  6. Step 6: Final answer
    x = 79,494.95

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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.