Home / 151,313.16-208,810.20-83,328.84

Finding the Fourth Proportional to 151,313.16, 208,810.20 and 83,328.84

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Solution

The fourth proportional to 151,313.16, 208,810.20 and 83,328.84 is: 114,992.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,313.16 : 208,810.20 = 83,328.84 : x
  2. Step 2: Convert to fraction form
    151,313.16/208,810.20 = 83,328.84/x
  3. Step 3: Cross multiply
    151,313.16x = 208,810.20 × 83,328.84
  4. Step 4: Simplify right side
    151,313.16x = 17,399,911,746.17
  5. Step 5: Solve for x
    x = 17,399,911,746.17/151,313.16
  6. Step 6: Final answer
    x = 114,992.72

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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.