Home / 155,988.32-215,263.23-84,368.17

Finding the Fourth Proportional to 155,988.32, 215,263.23 and 84,368.17

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Solution

The fourth proportional to 155,988.32, 215,263.23 and 84,368.17 is: 116,427.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,988.32 : 215,263.23 = 84,368.17 : x
  2. Step 2: Convert to fraction form
    155,988.32/215,263.23 = 84,368.17/x
  3. Step 3: Cross multiply
    155,988.32x = 215,263.23 × 84,368.17
  4. Step 4: Simplify right side
    155,988.32x = 18,161,364,783.39
  5. Step 5: Solve for x
    x = 18,161,364,783.39/155,988.32
  6. Step 6: Final answer
    x = 116,427.72

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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.