Home / 117,030.81-161,501.90-66,060.11

Finding the Fourth Proportional to 117,030.81, 161,501.90 and 66,060.11

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Solution

The fourth proportional to 117,030.81, 161,501.90 and 66,060.11 is: 91,162.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,030.81 : 161,501.90 = 66,060.11 : x
  2. Step 2: Convert to fraction form
    117,030.81/161,501.90 = 66,060.11/x
  3. Step 3: Cross multiply
    117,030.81x = 161,501.90 × 66,060.11
  4. Step 4: Simplify right side
    117,030.81x = 10,668,832,786.79
  5. Step 5: Solve for x
    x = 10,668,832,786.79/117,030.81
  6. Step 6: Final answer
    x = 91,162.60

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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.