Home / 111,411.18-153,767.08-66,114.14

Finding the Fourth Proportional to 111,411.18, 153,767.08 and 66,114.14

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Solution

The fourth proportional to 111,411.18, 153,767.08 and 66,114.14 is: 91,249.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,411.18 : 153,767.08 = 66,114.14 : x
  2. Step 2: Convert to fraction form
    111,411.18/153,767.08 = 66,114.14/x
  3. Step 3: Cross multiply
    111,411.18x = 153,767.08 × 66,114.14
  4. Step 4: Simplify right side
    111,411.18x = 10,166,178,254.51
  5. Step 5: Solve for x
    x = 10,166,178,254.51/111,411.18
  6. Step 6: Final answer
    x = 91,249.17

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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.