Home / 186,261.39-257,041.35-101,378.25

Finding the Fourth Proportional to 186,261.39, 257,041.35 and 101,378.25

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Solution

The fourth proportional to 186,261.39, 257,041.35 and 101,378.25 is: 139,902.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,261.39 : 257,041.35 = 101,378.25 : x
  2. Step 2: Convert to fraction form
    186,261.39/257,041.35 = 101,378.25/x
  3. Step 3: Cross multiply
    186,261.39x = 257,041.35 × 101,378.25
  4. Step 4: Simplify right side
    186,261.39x = 26,058,402,240.64
  5. Step 5: Solve for x
    x = 26,058,402,240.64/186,261.39
  6. Step 6: Final answer
    x = 139,902.33

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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.