Home / 119,130.87-164,403.47-64,685.36

Finding the Fourth Proportional to 119,130.87, 164,403.47 and 64,685.36

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Solution

The fourth proportional to 119,130.87, 164,403.47 and 64,685.36 is: 89,267.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,130.87 : 164,403.47 = 64,685.36 : x
  2. Step 2: Convert to fraction form
    119,130.87/164,403.47 = 64,685.36/x
  3. Step 3: Cross multiply
    119,130.87x = 164,403.47 × 64,685.36
  4. Step 4: Simplify right side
    119,130.87x = 10,634,496,496.76
  5. Step 5: Solve for x
    x = 10,634,496,496.76/119,130.87
  6. Step 6: Final answer
    x = 89,267.35

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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.