Home / 186,312.76-257,112.56-101,430.43

Finding the Fourth Proportional to 186,312.76, 257,112.56 and 101,430.43

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Solution

The fourth proportional to 186,312.76, 257,112.56 and 101,430.43 is: 139,974.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,312.76 : 257,112.56 = 101,430.43 : x
  2. Step 2: Convert to fraction form
    186,312.76/257,112.56 = 101,430.43/x
  3. Step 3: Cross multiply
    186,312.76x = 257,112.56 × 101,430.43
  4. Step 4: Simplify right side
    186,312.76x = 26,079,037,130.00
  5. Step 5: Solve for x
    x = 26,079,037,130.00/186,312.76
  6. Step 6: Final answer
    x = 139,974.51

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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.