Home / 162,030.30-243,045.45-128,204.70

Finding the Fourth Proportional to 162,030.30, 243,045.45 and 128,204.70

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Solution

The fourth proportional to 162,030.30, 243,045.45 and 128,204.70 is: 192,307.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,030.30 : 243,045.45 = 128,204.70 : x
  2. Step 2: Convert to fraction form
    162,030.30/243,045.45 = 128,204.70/x
  3. Step 3: Cross multiply
    162,030.30x = 243,045.45 × 128,204.70
  4. Step 4: Simplify right side
    162,030.30x = 31,159,569,003.62
  5. Step 5: Solve for x
    x = 31,159,569,003.62/162,030.30
  6. Step 6: Final answer
    x = 192,307.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.