Home / 112,501.65-155,252.40-64,764.30

Finding the Fourth Proportional to 112,501.65, 155,252.40 and 64,764.30

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Solution

The fourth proportional to 112,501.65, 155,252.40 and 64,764.30 is: 89,374.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,501.65 : 155,252.40 = 64,764.30 : x
  2. Step 2: Convert to fraction form
    112,501.65/155,252.40 = 64,764.30/x
  3. Step 3: Cross multiply
    112,501.65x = 155,252.40 × 64,764.30
  4. Step 4: Simplify right side
    112,501.65x = 10,054,813,009.32
  5. Step 5: Solve for x
    x = 10,054,813,009.32/112,501.65
  6. Step 6: Final answer
    x = 89,374.80

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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.