Home / 207,331.95-286,206.36-139,388.34

Finding the Fourth Proportional to 207,331.95, 286,206.36 and 139,388.34

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Solution

The fourth proportional to 207,331.95, 286,206.36 and 139,388.34 is: 192,415.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,331.95 : 286,206.36 = 139,388.34 : x
  2. Step 2: Convert to fraction form
    207,331.95/286,206.36 = 139,388.34/x
  3. Step 3: Cross multiply
    207,331.95x = 286,206.36 × 139,388.34
  4. Step 4: Simplify right side
    207,331.95x = 39,893,829,417.84
  5. Step 5: Solve for x
    x = 39,893,829,417.84/207,331.95
  6. Step 6: Final answer
    x = 192,415.25

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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.