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Finding the Fourth Proportional to 161,703.40, 242,555.10 and 122,045.80

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Solution

The fourth proportional to 161,703.40, 242,555.10 and 122,045.80 is: 183,068.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,703.40 : 242,555.10 = 122,045.80 : x
  2. Step 2: Convert to fraction form
    161,703.40/242,555.10 = 122,045.80/x
  3. Step 3: Cross multiply
    161,703.40x = 242,555.10 × 122,045.80
  4. Step 4: Simplify right side
    161,703.40x = 29,602,831,223.58
  5. Step 5: Solve for x
    x = 29,602,831,223.58/161,703.40
  6. Step 6: Final answer
    x = 183,068.70

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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.