Finding the Fourth Proportional to 175,875.16, 243,029.58 and 128,045.48
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Solution
The fourth proportional to 175,875.16, 243,029.58 and 128,045.48 is: 176,937.09
Step by Step Solution
- Step 1: Write the proportion equation
175,875.16 : 243,029.58 = 128,045.48 : x - Step 2: Convert to fraction form
175,875.16/243,029.58 = 128,045.48/x - Step 3: Cross multiply
175,875.16x = 243,029.58 × 128,045.48 - Step 4: Simplify right side
175,875.16x = 31,118,839,225.30 - Step 5: Solve for x
x = 31,118,839,225.30/175,875.16 - Step 6: Final answer
x = 176,937.09
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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.