Home / 86,518.18-119,349.48-70,403.77

Finding the Fourth Proportional to 86,518.18, 119,349.48 and 70,403.77

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Solution

The fourth proportional to 86,518.18, 119,349.48 and 70,403.77 is: 97,120.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,518.18 : 119,349.48 = 70,403.77 : x
  2. Step 2: Convert to fraction form
    86,518.18/119,349.48 = 70,403.77/x
  3. Step 3: Cross multiply
    86,518.18x = 119,349.48 × 70,403.77
  4. Step 4: Simplify right side
    86,518.18x = 8,402,653,339.54
  5. Step 5: Solve for x
    x = 8,402,653,339.54/86,518.18
  6. Step 6: Final answer
    x = 97,120.09

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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.