Home / 186,367.15-257,210.40-138,756.16

Finding the Fourth Proportional to 186,367.15, 257,210.40 and 138,756.16

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Solution

The fourth proportional to 186,367.15, 257,210.40 and 138,756.16 is: 191,501.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,367.15 : 257,210.40 = 138,756.16 : x
  2. Step 2: Convert to fraction form
    186,367.15/257,210.40 = 138,756.16/x
  3. Step 3: Cross multiply
    186,367.15x = 257,210.40 × 138,756.16
  4. Step 4: Simplify right side
    186,367.15x = 35,689,527,416.06
  5. Step 5: Solve for x
    x = 35,689,527,416.06/186,367.15
  6. Step 6: Final answer
    x = 191,501.17

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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.