Home / 186,312.42-257,102.64-101,429.28

Finding the Fourth Proportional to 186,312.42, 257,102.64 and 101,429.28

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Solution

The fourth proportional to 186,312.42, 257,102.64 and 101,429.28 is: 139,967.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,312.42 : 257,102.64 = 101,429.28 : x
  2. Step 2: Convert to fraction form
    186,312.42/257,102.64 = 101,429.28/x
  3. Step 3: Cross multiply
    186,312.42x = 257,102.64 × 101,429.28
  4. Step 4: Simplify right side
    186,312.42x = 26,077,735,661.30
  5. Step 5: Solve for x
    x = 26,077,735,661.30/186,312.42
  6. Step 6: Final answer
    x = 139,967.78

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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.