Home / 207,613.09-286,507-116,970.45

Finding the Fourth Proportional to 207,613.09, 286,507 and 116,970.45

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Solution

The fourth proportional to 207,613.09, 286,507 and 116,970.45 is: 161,419.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,613.09 : 286,507 = 116,970.45 : x
  2. Step 2: Convert to fraction form
    207,613.09/286,507 = 116,970.45/x
  3. Step 3: Cross multiply
    207,613.09x = 286,507 × 116,970.45
  4. Step 4: Simplify right side
    207,613.09x = 33,512,852,718.15
  5. Step 5: Solve for x
    x = 33,512,852,718.15/207,613.09
  6. Step 6: Final answer
    x = 161,419.75

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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.