Home / 151,762.16-209,422.80-83,777.45

Finding the Fourth Proportional to 151,762.16, 209,422.80 and 83,777.45

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Solution

The fourth proportional to 151,762.16, 209,422.80 and 83,777.45 is: 115,607.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,762.16 : 209,422.80 = 83,777.45 : x
  2. Step 2: Convert to fraction form
    151,762.16/209,422.80 = 83,777.45/x
  3. Step 3: Cross multiply
    151,762.16x = 209,422.80 × 83,777.45
  4. Step 4: Simplify right side
    151,762.16x = 17,544,908,155.86
  5. Step 5: Solve for x
    x = 17,544,908,155.86/151,762.16
  6. Step 6: Final answer
    x = 115,607.92

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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.