Home / 154,110.08-212,688.60-90,457.04

Finding the Fourth Proportional to 154,110.08, 212,688.60 and 90,457.04

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Solution

The fourth proportional to 154,110.08, 212,688.60 and 90,457.04 is: 124,840.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,110.08 : 212,688.60 = 90,457.04 : x
  2. Step 2: Convert to fraction form
    154,110.08/212,688.60 = 90,457.04/x
  3. Step 3: Cross multiply
    154,110.08x = 212,688.60 × 90,457.04
  4. Step 4: Simplify right side
    154,110.08x = 19,239,181,197.74
  5. Step 5: Solve for x
    x = 19,239,181,197.74/154,110.08
  6. Step 6: Final answer
    x = 124,840.51

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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.