Home / 151,430.34-208,975.27-83,449.74

Finding the Fourth Proportional to 151,430.34, 208,975.27 and 83,449.74

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Solution

The fourth proportional to 151,430.34, 208,975.27 and 83,449.74 is: 115,161.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,430.34 : 208,975.27 = 83,449.74 : x
  2. Step 2: Convert to fraction form
    151,430.34/208,975.27 = 83,449.74/x
  3. Step 3: Cross multiply
    151,430.34x = 208,975.27 × 83,449.74
  4. Step 4: Simplify right side
    151,430.34x = 17,438,931,947.93
  5. Step 5: Solve for x
    x = 17,438,931,947.93/151,430.34
  6. Step 6: Final answer
    x = 115,161.41

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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.