Home / 131,810.41-181,897.45-71,379.67

Finding the Fourth Proportional to 131,810.41, 181,897.45 and 71,379.67

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Solution

The fourth proportional to 131,810.41, 181,897.45 and 71,379.67 is: 98,503.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,810.41 : 181,897.45 = 71,379.67 : x
  2. Step 2: Convert to fraction form
    131,810.41/181,897.45 = 71,379.67/x
  3. Step 3: Cross multiply
    131,810.41x = 181,897.45 × 71,379.67
  4. Step 4: Simplify right side
    131,810.41x = 12,983,779,954.84
  5. Step 5: Solve for x
    x = 12,983,779,954.84/131,810.41
  6. Step 6: Final answer
    x = 98,503.45

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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.