Home / 134,331.09-185,501.40-86,666.37

Finding the Fourth Proportional to 134,331.09, 185,501.40 and 86,666.37

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Solution

The fourth proportional to 134,331.09, 185,501.40 and 86,666.37 is: 119,679.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,331.09 : 185,501.40 = 86,666.37 : x
  2. Step 2: Convert to fraction form
    134,331.09/185,501.40 = 86,666.37/x
  3. Step 3: Cross multiply
    134,331.09x = 185,501.40 × 86,666.37
  4. Step 4: Simplify right side
    134,331.09x = 16,076,732,967.92
  5. Step 5: Solve for x
    x = 16,076,732,967.92/134,331.09
  6. Step 6: Final answer
    x = 119,679.91

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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.