Home / 148,603.20-204,688.80-121,646.40

Finding the Fourth Proportional to 148,603.20, 204,688.80 and 121,646.40

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Solution

The fourth proportional to 148,603.20, 204,688.80 and 121,646.40 is: 167,558.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,603.20 : 204,688.80 = 121,646.40 : x
  2. Step 2: Convert to fraction form
    148,603.20/204,688.80 = 121,646.40/x
  3. Step 3: Cross multiply
    148,603.20x = 204,688.80 × 121,646.40
  4. Step 4: Simplify right side
    148,603.20x = 24,899,655,640.32
  5. Step 5: Solve for x
    x = 24,899,655,640.32/148,603.20
  6. Step 6: Final answer
    x = 167,558.00

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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.