Home / 210,160.04-290,064.02-128,502.25

Finding the Fourth Proportional to 210,160.04, 290,064.02 and 128,502.25

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Solution

The fourth proportional to 210,160.04, 290,064.02 and 128,502.25 is: 177,359.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,160.04 : 290,064.02 = 128,502.25 : x
  2. Step 2: Convert to fraction form
    210,160.04/290,064.02 = 128,502.25/x
  3. Step 3: Cross multiply
    210,160.04x = 290,064.02 × 128,502.25
  4. Step 4: Simplify right side
    210,160.04x = 37,273,877,846.37
  5. Step 5: Solve for x
    x = 37,273,877,846.37/210,160.04
  6. Step 6: Final answer
    x = 177,359.50

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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.