Home / 162,039.04-223,612.32-90,417.28

Finding the Fourth Proportional to 162,039.04, 223,612.32 and 90,417.28

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Solution

The fourth proportional to 162,039.04, 223,612.32 and 90,417.28 is: 124,774.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,039.04 : 223,612.32 = 90,417.28 : x
  2. Step 2: Convert to fraction form
    162,039.04/223,612.32 = 90,417.28/x
  3. Step 3: Cross multiply
    162,039.04x = 223,612.32 × 90,417.28
  4. Step 4: Simplify right side
    162,039.04x = 20,218,417,748.89
  5. Step 5: Solve for x
    x = 20,218,417,748.89/162,039.04
  6. Step 6: Final answer
    x = 124,774.98

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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.