Home / 155,890.11-215,130.32-94,618.57

Finding the Fourth Proportional to 155,890.11, 215,130.32 and 94,618.57

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Solution

The fourth proportional to 155,890.11, 215,130.32 and 94,618.57 is: 130,574.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,890.11 : 215,130.32 = 94,618.57 : x
  2. Step 2: Convert to fraction form
    155,890.11/215,130.32 = 94,618.57/x
  3. Step 3: Cross multiply
    155,890.11x = 215,130.32 × 94,618.57
  4. Step 4: Simplify right side
    155,890.11x = 20,355,323,242.04
  5. Step 5: Solve for x
    x = 20,355,323,242.04/155,890.11
  6. Step 6: Final answer
    x = 130,574.82

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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.