Home / 102,901.19-141,993.95-64,135.40

Finding the Fourth Proportional to 102,901.19, 141,993.95 and 64,135.40

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Solution

The fourth proportional to 102,901.19, 141,993.95 and 64,135.40 is: 88,500.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,901.19 : 141,993.95 = 64,135.40 : x
  2. Step 2: Convert to fraction form
    102,901.19/141,993.95 = 64,135.40/x
  3. Step 3: Cross multiply
    102,901.19x = 141,993.95 × 64,135.40
  4. Step 4: Simplify right side
    102,901.19x = 9,106,837,750.18
  5. Step 5: Solve for x
    x = 9,106,837,750.18/102,901.19
  6. Step 6: Final answer
    x = 88,500.81

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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.